Thread: CIS fuel head
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beepbeep beepbeep is offline
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Join Date: Jun 2001
Location: Sweden
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Nr. 16 is OEM fuel accumulator. It's main purpose is to keep some pressure in system so it doesn't take a long time for fuel pumps to pressurize system to 7 bar before start. It's just an accumulator and is not there to adjust fuel pressure in any way. Amount of fuel injected by CIS depends by pressure differential between system pressure and control pressure (which is smart way to assure that amount of injected fuel won't change if fuel pumps loose their efficiency later on).

I guess PO tried to cobble up his own fuel enrichment device by attaching EFI pressure regulator in order to raise system pressure or decrease control pressure during boost or something.

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Last edited by beepbeep; 12-01-2007 at 06:45 AM..
Old 12-01-2007, 06:37 AM
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